Home / 98,494.08-135,921.72-58,222.40

Finding the Fourth Proportional to 98,494.08, 135,921.72 and 58,222.40

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Solution

The fourth proportional to 98,494.08, 135,921.72 and 58,222.40 is: 80,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,494.08 : 135,921.72 = 58,222.40 : x
  2. Step 2: Convert to fraction form
    98,494.08/135,921.72 = 58,222.40/x
  3. Step 3: Cross multiply
    98,494.08x = 135,921.72 × 58,222.40
  4. Step 4: Simplify right side
    98,494.08x = 7,913,688,750.53
  5. Step 5: Solve for x
    x = 7,913,688,750.53/98,494.08
  6. Step 6: Final answer
    x = 80,346.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.